A flaw was found in 389 Directory Server. (CVE-2026-18453)
A flaw was found in 389 Directory Server. A missing NULL pointer check in the paged results handling of op_shared_search allows an unauthenticated remote attacker to crash the LDAP server by sending a crafted sequence of search requests using the USE_ONE_BACKEND control, resulting in denial of service.
A flaw was found in 389 Directory Server. (CVE-2026-18453)
Description
A flaw was found in 389 Directory Server. A missing NULL pointer check in the paged results handling of op_shared_search allows an unauthenticated remote attacker to crash the LDAP server by sending a crafted sequence of search requests using the USE_ONE_BACKEND control, resulting in denial of service.
CVSS v3.1
Score 7.5high
Weaknesses
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-42wr-8m7m-5j62
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-18453"]
- Ecosystems
- []
- Database Specific Severity
- HIGH
- Cvss Version
- 3.1
Patch Information
Threat ID: 6a9f910bacd9273b49ff26a5
Added to database: 09/08/2026, 04:37:31 UTC
Last updated: 09/08/2026, 04:37:31 UTC
Views: 1
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